<template>
    <div>
        <!-- 面包屑导航区域-->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!--卡片视图区域-->
        <el-card>
            <!--搜索与添加区域-->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogvisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!--            用户列表区域-->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <!--修改按钮-->
                        <el-tooltip effect="dark" content="修改" placement="top" :enterable="false">
                            <el-button type="primary" icon="el-icon-edit" size="mini"
                                       @click="showEditDialog(scope.row.id)"></el-button>
                        </el-tooltip>
                        <!--删除按钮-->
                        <el-tooltip effect="dark" content="删除" placement="top" :enterable="false">
                            <el-button type="danger" icon="el-icon-delete" size="mini"
                                       @click="removeUserById(scope.row.id)"></el-button>
                        </el-tooltip>
                        <!--分配角色-->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini"
                                       @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!--            分页区域-->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[5, 10, 15, 20]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>
            <!-- dialog弹窗        添加用户的对话框   :visible.sync控制对话框的显示与隐藏-->
            <el-dialog title="添加用户" :visible.sync="addDialogvisible" width="30%" @close="addDialgClosed">
                <!--内容主体区域-->
                <span>        <!--:model数据对象 :rules校验规则对象  ref注册表单-->
                    <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                          <el-form-item label="用户名" prop="username">
                            <el-input v-model="addForm.username"></el-input>
                          </el-form-item>
                          <el-form-item label="密码" prop="password">
                            <el-input v-model="addForm.password"></el-input>
                          </el-form-item>
                          <el-form-item label="邮箱" prop="email">
                            <el-input v-model="addForm.email"></el-input>
                          </el-form-item>
                          <el-form-item label="手机" prop="mobile">
                            <el-input v-model="addForm.mobile"></el-input>
                          </el-form-item>
                    </el-form>
                </span>
                <!--                底部区域-->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addDialogvisible = false">取 消</el-button>
                    <el-button type="primary" @click="adduser">确 定</el-button>
              </span>
            </el-dialog>
            <!--修改用户的对话框-->
            <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="30%" @close="editDialogClosed">
                <span>
                    <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                        <el-form-item label="用户名">
                            <el-input v-model="editForm.username" disabled></el-input>
                        </el-form-item>
                        <el-form-item label="邮箱" prop="email">
                            <el-input v-model="editForm.email"></el-input>
                        </el-form-item>
                        <el-form-item label="手机号" prop="mobile">
                            <el-input v-model="editForm.mobile"></el-input>
                        </el-form-item>

                    </el-form>
                </span>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </el-dialog>
            <!--        分配角色的对话框-->
            <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="30%" @close="setRoleDialogClosed">
                <div>
                    <p>当前的用户：{{userInfo.username}}</p>
                    <p>当前的角色：{{userInfo.role_name}}</p>
                    <p>
                        分配新角色：
                        <el-select v-model="selectedRoleId" placeholder="请选择">
                            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                            </el-option>
                        </el-select>
                    </p>
                </div>
                <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
            </el-dialog>

        </el-card>
    </div>
</template>

<script>
    export default {
        name: "Users",
        data() {
            // 验证邮箱的规则  rule校验规则  value要校验的值  cb:callback回调函数
            var checkEmail = (rule, value, cb) => {
                const regEmail = /^[a-z0-9]+([._-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/
                if (regEmail.test(value)) {
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
            }
            // 验证手机号的规则
            var checkMobile = (rule, value, cb) => {
                const regMobile = /^1(3[0-9]|4[01456879]|5[0-35-9]|6[2567]|7[0-8]|8[0-9]|9[0-35-9])\d{8}$/
                if (regMobile.test(value)) {
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))
            }
            return {
                // 获取用户列表的参数对象
                queryInfo: {
                    query: '',
                    // 当前的页数
                    pagenum: 1,
                    // 当前每页显示多少条数据
                    pagesize: 5
                },
                userlist: [],
                // 共几条数据
                total: 0,
                //控制添加用户对话框的显示与隐藏
                addDialogvisible: false,
                // 添加用户的表单数据
                addForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: ''
                },
                // 添加表单的验证规则对象
                addFormRules: {
                    //验证用户名
                    username: [
                        {
                            required: true, //是否必填
                            message: '请输入用户名',
                            trigger: 'blur' //校验时机  失去焦点时触发
                        },
                        {
                            min: 3,
                            max: 10,
                            message: '用户名的长度在3~10个字符之间',
                            trigger: 'blur'
                        }],
                    // 验证密码
                    password: [
                        {
                            required: true,
                            message: '请输入密码',
                            trigger: 'blur'
                        },
                        {
                            min: 6,
                            max: 15,
                            message: '密码的长度在6~15个字符之间',
                            trigger: 'blur'
                        }],
                    // 验证邮箱
                    email: [
                        {
                            required: true,
                            message: '请输入邮箱',
                            trigger: 'blur'
                        },
                        {   //调用校验规则和设置校验时机
                            validator: checkEmail, trigger: 'blur'
                        }
                    ],
                    // 验证手机号
                    mobile: [
                        {
                            required: true,
                            message: '请输入手机号',
                            trigger: 'blur'
                        },
                        {
                            validator: checkMobile, trigger: 'blur'
                        }
                    ]
                },
                // 控制修改用户对话框的显示与隐藏
                editDialogVisible: false,
                // 控制分配角色对话框的显示与隐藏
                setRoleDialogVisible: false,
                // 查询到的用户信息对象
                editForm: {},
                //修改表单的校验规则
                editFormRules: {
                    email: [{
                        required: false,
                        message: '请输入邮箱',
                        trigger: 'blur'
                    },
                        {
                            validator: checkEmail, trigger: 'blur'
                        }
                    ],
                    mobile: [{
                        required: false,
                        message: '请输入手机号',
                        trigger: 'blur'
                    },
                        {
                            validator: checkMobile, trigger: 'blur'
                        }
                    ]
                },
                //需要被分配角色的用户信息
                userInfo: {},
                //所有角色的数据列表
                rolesList: [],
                //已选中的角色id值
                selectedRoleId: ''
            }
        },
        created() {
            this.getUserList()
        },
        methods: {
            //获取数据库中用户列表
            async getUserList() {
                const {data: res} = await this.$http.get('users', {params: this.queryInfo});
                if (res.meta.status !== 200) {
                    return this.$message.error('获取用户列表失败！');
                }
                this.userlist = res.data.users;
                this.total = res.data.total;
            },
            // 监听pagesize改变的事件
            handleSizeChange(newSize) {
                this.queryInfo.pagesize = newSize;
                this.getUserList()
            },
            // 监听 页码值 改变的事件
            handleCurrentChange(newPage) {
                this.queryInfo.pagenum = newPage;
                this.getUserList()
            },
            // 监听 switch 开关状态的改变
            async userStateChanged(userInfo) {
                const {data: res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`);
                if (res.meta.status !== 200) {
                    userInfo.mg_state = !userInfo.mg_state;
                    return this.$message.error('更新用户状态失败！');
                }
                this.$message.success('更新用户状态成功！')
            },
            // 监听添加用户对话框的关闭事件
            addDialgClosed() {
                this.$refs.addFormRef.resetFields()
            },
            // 点击按钮，添加新用户
            adduser() {
                this.$refs.addFormRef.validate(async valid => {
                    if (!valid) return;
                    const {data: res} = await this.$http.post('users', this.addForm)
                    if (res.meta.status !== 201) {
                        return this.$message.error('添加用户失败！');
                    }
                    this.$message.success('添加用户成功！');
                    this.addDialogvisible = false;
                    this.getUserList()
                })
            },
            // 展示编辑用户的对话框
            async showEditDialog(id) {
                const {data: res} = await this.$http.get('users/' + id);
                if (res.meta.status !== 200) {
                    return this.$message.error('查询用户信息失败！')
                }
                this.editForm = res.data
                this.editDialogVisible = true
            },
            // 监听修改用户对话框的关闭事件
            editDialogClosed() {
                this.$refs.editFormRef.resetFields()
            },
            // 修改用户信息并提交
            editUserInfo() {
                //判断写的内容有没有通过校验规则，没通过返回校验错误信息，通过执行数据请求
                this.$refs.editFormRef.validate(async valid => {
                    if (!valid) return;
                    // 发起修改用户信息的数据请求
                        const {data: res} = await this.$http.put('users/' + this.editForm.id, {
                            email: this.editForm.email,
                            mobile: this.editForm.mobile
                        })
                        if (res.meta.status !== 200) {
                            return this.$message.error('更新用户信息失败！')
                        }
                        //关闭对话框
                        this.editDialogVisible = false;
                        // 刷新数据列表
                        this.getUserList();
                        // 提示修改成功
                        this.$message.success('更新用户信息成功！')
            })
            },
            // 根据id删除对应的用户信息
            async removeUserById(id) {
                // 弹框询问用户是否删除数据
                const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => err)

                // 如果用户确认删除，则返回值为字符串confirm
                // 如果取消删除，则返回字符串cancel
                if (confirmResult !== 'confirm') {
                    return this.$message.info('已取消删除')
                }
                    const {data: res} = await this.$http.delete('users/' + id)
                    if (res.meta.status !== 200) {
                        return this.$message.error('删除用户失败！')
                    }
                    this.$message.success('删除用户成功！');
                    this.getUserList();
            },
            //展示分配角色的对话框
            async setRole(userInfo) {
                this.userInfo = userInfo
                //在展示对话框之前获取所有角色列表
                const {data: res} = await this.$http.get('roles')
                if (res.meta.status !== 200) {
                    return this.$message.error('获取角色列表失败！')
                }
                this.rolesList = res.data
                console.log(this.rolesList.rid)
                this.setRoleDialogVisible = true
            },
            // 点击按钮分配角色
            async saveRoleInfo() {
                if (!this.selectedRoleId) {
                    return this.$message.error('请选择要分配的角色！')
                }
                    const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid: this.selectedRoleId})
                    if (res.meta.status !== 200) {
                        return this.$message.error('更新角色失败！')
                    }
                    this.$message.success('更新角色成功！')
                    this.getUserList()
                    this.setRoleDialogVisible = false
            },
            //监听分配角色对话框的关闭事件
            setRoleDialogClosed() {
                this.selectedRoleId = ''
                this.userInfo = {}
            }
        }
    }
</script>

<style scoped>

</style>